global name 'sqrt' is not defined

[M.-A. Lemburg]

On 2009-02-05 10:08, Nick Matzke wrote:
> Hi all,
> 
> So, I can run this in the ipython shell just fine:
> 
> ===========
> a = ["12", "15", "16", "38.2"]
> dim = int(sqrt(size(a)))
> 
> dim
>>2
> ===========
> 
> 
> But if I move these commands to a function in another file, it freaks out:

You need to add:

from math import sqrt

> =================================
> a = distances_matrix.split('\t')
> from LR_run_functions_v2 import make_half_square_array
> d = make_half_square_array(a)
> 
>>
> ---------------------------------------------------------------------------
> NameError                                 Traceback (most recent call last)
> 
> /bioinformatics/phylocom/<ipython console> in <module>()
> 
> /bioinformatics/phylocom/_scripts/LR_run_functions_v2.py in
> make_half_square_array(linear_version_of_square_array)
>    1548
>    1549         a = linear_version_of_square_array
> -> 1550         dim = int(sqrt(size(a)))
>    1551
>    1552
> 
> NameError: global name 'sqrt' is not defined
> 
> =================================
> 
> 
> 
> 
> Here's the function in LR_run_functions_v2.py
> 
> ==========================
> def make_half_square_array(linear_version_of_square_array):
> 
>     a = linear_version_of_square_array
>     dim = int(sqrt(size(a)))
> ==========================
> 
> 
> 
> Any ideas?  If I do something like "import math" in the subfunction,
> then the error changes to "global name 'math' is not defined".
> 
> Thanks!
> Nick
> 
> 
> 
> 
> 
> 
> 

-- 
Marc-Andre Lemburg
eGenix.com

Professional Python Services directly from the Source  (#1, Feb 05 2009)
>>> Python/Zope Consulting and Support ...        http://www.egenix.com/
>>> mxODBC.Zope.Database.Adapter ...             http://zope.egenix.com/
>>> mxODBC, mxDateTime, mxTextTools ...        http://python.egenix.com/
________________________________________________________________________

::: Try our new mxODBC.Connect Python Database Interface for free ! ::::


   eGenix.com Software, Skills and Services GmbH  Pastor-Loeh-Str.48
    D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg
           Registered at Amtsgericht Duesseldorf: HRB 46611
               http://www.egenix.com/company/contact/